CN204468244U - Be suitable for the miniature Isthmic defect fixing head of personal customization - Google Patents
Be suitable for the miniature Isthmic defect fixing head of personal customization Download PDFInfo
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- CN204468244U CN204468244U CN201520024907.1U CN201520024907U CN204468244U CN 204468244 U CN204468244 U CN 204468244U CN 201520024907 U CN201520024907 U CN 201520024907U CN 204468244 U CN204468244 U CN 204468244U
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- fixing head
- nail
- miniature
- personal customization
- isthmic
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Abstract
The utility model discloses the miniature Isthmic defect fixing head being suitable for personal customization, relate to pedicle of vertebral arch to burst apart healing technical field of surgical instruments, for the isthmus fixedly burst apart, comprise the Y shape fixing head body can fitted completely with isthmus, described fixing head body comprises first body for being fixedly connected with superior articular process's basilar part and the second body for being fixedly connected with vertebral plate bone, described first body and described second body connect as one, and accompany obtuse angle in vertical direction between described first body and described second body or circular arc is excessive; Described first body is list structure, and described second body is Y-shaped structure.This utility model is suitable for the miniature Isthmic defect fixing head compact of personal customization, and operation wound face is little, can be fitted in completely on vertebral plate bone, and be connected more reliable with vertebral plate bone, little to muscle injury, postoperative complication is low.
Description
Technical field
This utility model relates to Spondyloschisis and cures technical field of surgical instruments, specifically a kind of miniature Isthmic defect fixing head being suitable for personal customization.
Background technology
Pedicle isthmus means the narrow between upper and lower articular process, arise from vertebral body upper back, short and thick, with Vertical dimension rear, vertebral body direction projection, its profile is curved, merges with vertebral body, articular process and vertebral arch, has a more shallow incisura to form the lower wall of intervertebral foramina above it, have a darker pedicle of vertebral arch inferior thyroid notch to form the upper wall of intervertebral foramina below pedicle of vertebral arch, bony structures is relatively weak herein.Normal lumbar vertebra has physiology lordosis, and sacral is convex after physiology, and waist, sacral intersection become turning point.Top lumbar vertebra turns forward, and the rumpbone of below then tilts backwards.Therefore, the negative G self-assembling formation component forward of lumbosacral spine, makes the tendency of the oriented front slippage of waist, but is normally subject to the restriction of waist inferior articular process and periarticular capsule, ligament, and pedicle isthmus is in the intersection point of two kinds of strength.Therefore, pedicle isthmus is easily burst apart.
The cure method of Spondyloschisis is mainly nail hook fixation, namely by nail hook fixation that the pedicle screw of upper joint basilar part is connected with vertebral arch hook, utilize pedicle of vertebral arch fixture of bursting apart that the isthmus burst apart is fixed, the position bone heals until burst apart, method is: in superior articular process's basilar part location, implant pedicle screw, vertebral arch hook hook is in the lower edge of same sections vertebral arch, be connected by connecting rod between the two, regulate the screw on connecting rod to realize supercharging, fixation.
This vertebral arch hook has the following disadvantages: vertebral arch coupler body is long-pending large, and operation wound face is large, large to the damage of muscle when performing an operation; Vertebral arch hook is connected insecure with vertebral plate, vertebral arch hook easily slides.
Utility model content
The technical problems to be solved in the utility model is: provide a kind of miniature Isthmic defect fixing head being suitable for personal customization, this fixing this compact of fixing head, operation wound face is little, can be fitted in completely on vertebral plate bone, meanwhile, fixing head is connected more reliable with vertebra vertebral plate bone.
For solving the problems of the technologies described above, the technical solution of the utility model is: the miniature Isthmic defect fixing head being suitable for personal customization, for the isthmus fixedly burst apart, comprise the Y shape fixing head body can fitted completely with isthmus, described fixing head body comprises first body for being fixedly connected with superior articular process's basilar part and the second body for being fixedly connected with vertebral plate bone, described first body and described second body connect as one, and accompany obtuse angle in vertical direction between described first body and described second body or circular arc is excessive; Described first body is list structure, and described second body is Y-shaped structure.
Improve as one, the end of described first body is provided with first nail for being fixedly connected with superior articular process's basilar part; The end of described second body is provided with the second nail for being fixedly connected with vertebral plate bone.
Improve as one, described second nail is provided with three, the distribution triangular in shape of three described second nail, wherein two described second nail lay respectively at the two ends of described second body Y shape bifurcated, and the second nail described in another is positioned at the intersection of described Y shape bifurcated.
Improve as one, the angle of described Y shape bifurcated is 60 ° ~ 120 °.
Improve as one, for connecting described first body between described first nail and each described second nail and described second body is column structure, the diameter of described first nail and described second nail is all greater than the diameter of described column structure.
Improve as one, described first nail and described second nail are screwed hole.
Improve as one, described screwed hole is Universal self-locking screw thread.
Improve as one, described in be suitable for the miniature Isthmic defect fixing head of personal customization material be polylactic acid.
Improve as one, described in be suitable for the miniature Isthmic defect fixing head of personal customization material be titanium alloy.
Owing to adopting said structure, the beneficial effects of the utility model are:
Because this utility model is suitable for the miniature Isthmic defect fixing head of personal customization, comprise the Y shape fixing head body can fitted completely with isthmus, the second body that fixing head body includes the first body for being fixedly connected with superior articular process's basilar part and is fixedly connected with vertebral plate epiphysis, first body and the second body connect as one, obtuse angle is accompanied in vertical direction or circular arc is excessive between first body and the second body, first body is list structure, and the second body is Y-shaped structure.Due to and to accompany obtuse angle or circular arc between first body and the second body in vertical direction excessive, first body and the second body, not in same plane, make fixing head body can fit completely with isthmus.And fixing head body thickness is little, volume is little, and on the vertebral plate bone that fixing head body can be fitted in isthmus by Minimally Invasive Surgery and superior articular process's basilar part, the wound caused health is little.Existing hook screw fixing operation opening at least wants 10cm long, and this utility model operation opening only needs 3 ~ 5cm can complete operation, and little to the damage of muscle, postoperative rehabilitation is fast, and complication probability is low.Because the second body is Y-shaped structure, the two ends of Y shape bifurcated are respectively equipped with the second nail, are provided with second nail in the intersection of Y shape bifurcated, and what fixing head body and vertebral plate bone were fitted is more solid and reliable.
The miniature Isthmic defect fixing head being suitable for personal customization due to this utility model is made by Biodegradable material polylactic acid, polylactic acid is to human non-toxic's property, and have good biocompatibility, do not cause inflammatory reaction and the foreign material repulsion reaction of surrounding tissue, its catabolite is hydroxyacetic acid and lactic acid, carbohydate metabolism circulation can be participated in body, through series of biochemical reactions, is finally degraded into carbon dioxide and water excretes.This utility model adopts polylactic acid to make, and solves in prior art to adopt metal to fix isthmus to need second operation to take out the problem of metal, reduce medical expense, alleviate burden and the misery of patient.
In sum, it is large that the miniature Isthmic defect fixing head that this utility model is suitable for personal customization solves Spondyloschisis operation wound in prior art, the technical problem that complication probability is high, this utility model is suitable for the miniature Isthmic defect fixing head compact of personal customization, and operation wound face is little, can be fitted in completely on pedicle of vertebral arch bone, be connected more reliable with vertebral plate bone, little to muscle injury, postoperative complication is low, alleviates the burden of patient.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, this utility model is further illustrated.
Fig. 1 is the structural representation that this utility model is suitable for the miniature Isthmic defect fixing head of personal customization;
Fig. 2 is the upward view of Fig. 1;
Fig. 3 is the using state schematic diagram that this utility model is suitable for the miniature Isthmic defect fixing head of personal customization;
In figure: 1-Isthmic defect fixing head; 11-fixing head body; 12-first body; 121-first nail; 13-second body; 131-second nail; 2-vertebral plate bone; 3-superior articular process basilar part.
Detailed description of the invention
Below by embodiment and accompanying drawing, the utility model is described in further detail.
As Fig. 1 and Fig. 2 jointly shown in, a kind of miniature Isthmic defect fixing head 1 being suitable for personal customization, for the isthmus fixedly burst apart, comprise the fixing head body 11 can fitted completely with isthmus, fixing head body 11 comprises first body 12 for being fixedly connected with superior articular process's basilar part 3 and the second body 13 for being fixedly connected with vertebral plate bone 2, first body 12 and the second body 13 connect as one, first body 12 and the second body 13 accompanies obtuse angle in vertical direction or circular arc is excessive; First body 12 is list structure, and the second body 13 is Y-shaped structure.
The end of first body 12 is provided with first nail 121 for being fixedly connected with superior articular process's basilar part 3; The end of the second body 13 is provided with two the second nail 131 for being fixedly connected with vertebral plate bone 2, second nail 131 is provided with three, distribution triangular in shape, wherein two the second nail 131 lay respectively at the two ends of the Y shape bifurcated of the second body 13, another the second nail 131 is positioned at the intersection of Y shape bifurcated, and the angle of Y shape bifurcated is 60 ° ~ 120 °.
First nail 121 and the second nail 131 are screwed hole, and screw thread preferentially adopts Universal self-locking screw thread, to strengthen the reliability of connection.
Connect first body 12 between the first nail 121 and the second nail 131 and the second body 13 is column structure, the diameter of the first nail 121 and the second nail 131 is all greater than the diameter of column structure, so that the structure of adjustment fixing plate body 11, what make it change fits with isthmus.
As shown in Figure 1, Isthmic defect fixing head 1 length is in the horizontal direction 34.995mm, width is 7.600mm, as shown in Figure 2, Isthmic defect fixing head 1 height is in vertical direction 7.00mm, only can realize Minimally Invasive Surgery to this utility model be described with the above-mentioned example that is of a size of, in practical application, this utility model is not limited to above-mentioned size.
This utility model can customize according to the skeletal structure of different patient, and concrete method for customizing is as follows:
Before operation, CT scan is carried out to the isthmus skeletal size of patient, scan-data is input in 3D printer, have 3D printer to print the Isthmic defect fixing head 1 of this patient applicable.
The material of Isthmic defect fixing head 1 can adopt and make the harmless titanium alloy of the person or polylactic acid.
Because polylactic acid is to human non-toxic's property, and have good biocompatibility, do not cause inflammatory reaction and the foreign material repulsion reaction of surrounding tissue, its catabolite is hydroxyacetic acid and lactic acid, carbohydate metabolism circulation in body can be participated in, through series of biochemical reactions, finally be degraded into carbon dioxide and water excretes, this utility model adopts polylactic acid to make, solve in prior art and adopt metal to fix isthmus to need second operation to take out the problem of metal, reduce medical expense, alleviate burden and the misery of patient.Therefore the material of the preferred Isthmic defect fixing head 1 of present embodiment is polylactic acid.
As shown in Figure 3, when doing Spondyloschisis fixing operation, fixing head body 11 is fitted on vertebral plate bone 2 and superior articular process's basilar part 3, after adjusting position, hole on vertebral plate bone 2 and superior articular process's basilar part 3 according to the first nail 121 and the second nail 131 respectively, hammered into by nail in the first nail 121 and the second nail 131, the part drawing of Spondyloschisis is fixed by fixing head body 11.Fixing head body 11 can be fitted completely with vertebral plate bone 2, and fixing head body 11 thickness is little, and volume is little, and on the vertebral plate bone 2 that fixing head body 11 can be fitted in isthmus by Minimally Invasive Surgery and superior articular process's basilar part 3, the wound caused health is little.Existing hook screw fixing operation opening at least wants 10cm long, and this utility model operation opening only needs 3 ~ 5cm can complete operation, and can not invade and hinder canalis spinalis, and little to the damage of muscle, postoperative rehabilitation is fast, and complication probability is low.
This utility model is not limited to above-mentioned concrete embodiment, and those of ordinary skill in the art is from above-mentioned design, and without performing creative labour, all conversion made, all drop within protection domain of the present utility model.
Claims (9)
1. be suitable for the miniature Isthmic defect fixing head of personal customization, for the isthmus fixedly burst apart, it is characterized in that, comprise the Y shape fixing head body can fitted completely with isthmus, described fixing head body comprises first body for being fixedly connected with superior articular process's basilar part and the second body for being fixedly connected with vertebral plate bone, described first body and described second body connect as one, and accompany obtuse angle in vertical direction between described first body and described second body or circular arc is excessive; Described first body is list structure, and described second body is Y-shaped structure.
2. be suitable for the miniature Isthmic defect fixing head of personal customization as claimed in claim 1, it is characterized in that, the end of described first body is provided with first nail for being fixedly connected with superior articular process's basilar part; The end of described second body is provided with the second nail for being fixedly connected with vertebral plate bone.
3. be suitable for the miniature Isthmic defect fixing head of personal customization as claimed in claim 2, it is characterized in that, described second nail is provided with three, the distribution triangular in shape of three described second nail, wherein two described second nail lay respectively at the two ends of described second body Y shape bifurcated, and the second nail described in another is positioned at the intersection of described Y shape bifurcated.
4. be suitable for the miniature Isthmic defect fixing head of personal customization as claimed in claim 3, it is characterized in that, the angle of described Y shape bifurcated is 60 ° ~ 120 °.
5. be suitable for the miniature Isthmic defect fixing head of personal customization as claimed in claim 4, it is characterized in that, for connecting described first body between described first nail and each described second nail and described second body is column structure, the diameter of described first nail and described second nail is all greater than the diameter of described column structure.
6. the miniature Isthmic defect fixing head being suitable for personal customization as described in claim as arbitrary in claim 2 to 5, is characterized in that, described first nail and described second nail are screwed hole.
7. be suitable for the miniature Isthmic defect fixing head of personal customization as claimed in claim 6, it is characterized in that, described screwed hole is Universal self-locking screw thread.
8. be suitable for the miniature Isthmic defect fixing head of personal customization as claimed in claim 7, it is characterized in that, described in be suitable for the miniature Isthmic defect fixing head of personal customization material be polylactic acid.
9. be suitable for the miniature Isthmic defect fixing head of personal customization as claimed in claim 7, it is characterized in that, described in be suitable for the miniature Isthmic defect fixing head of personal customization material be titanium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520024907.1U CN204468244U (en) | 2015-01-14 | 2015-01-14 | Be suitable for the miniature Isthmic defect fixing head of personal customization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520024907.1U CN204468244U (en) | 2015-01-14 | 2015-01-14 | Be suitable for the miniature Isthmic defect fixing head of personal customization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204468244U true CN204468244U (en) | 2015-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520024907.1U Expired - Fee Related CN204468244U (en) | 2015-01-14 | 2015-01-14 | Be suitable for the miniature Isthmic defect fixing head of personal customization |
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| Country | Link |
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| CN (1) | CN204468244U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106725788A (en) * | 2016-12-27 | 2017-05-31 | 中国人民解放军第二军医大学第二附属医院 | A kind of wing plate with curved surface internal fixation system for spondylolysis and spondylolithesis of the lumbar spine |
-
2015
- 2015-01-14 CN CN201520024907.1U patent/CN204468244U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106725788A (en) * | 2016-12-27 | 2017-05-31 | 中国人民解放军第二军医大学第二附属医院 | A kind of wing plate with curved surface internal fixation system for spondylolysis and spondylolithesis of the lumbar spine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150715 Termination date: 20180114 |
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| CF01 | Termination of patent right due to non-payment of annual fee |